If you have an awesome idea for a shirt, but don't want to spend a lot of time or money actually making it, Instructables user icecreamterror has a simple guide for making shirts quickly and efficiently by using a vinyl cut out.

Making your own customer t-shirts is awesome, but it can get a little pricey and excessive if you have to order in bulk. The quality of inkjet transfers isn't exactly ideal, either. Fortunately, Instructables user Matthew Vieke has a great solution that requires just a shirt, a sharpie, and a few other optional items: